Improvement in coupling for tumbling-shafts



datiert Startet @anni @Mira Letters Patent N0'. 105,259, dated July 12, 1870.

The Schedule referred to in these Letters Patent and making part of the same Nature and Objects of my Invention.

The first part of my invention relates lto the ring A, madewith chambers or grooves forreceiving the lugs or trunuions of the coupling-heads and movable blocks, as hereafter described, so that when the ring is fastened together, the trunnions are heldA within the grooves, and, when in use, will strike against the movable block,which can be removed when worn, and another one substituted at a slight expense.

The second part thereof relates to the blocks slid'- ing in the grooves or chambers, so that thel trunnons do not have a rigid'bearing,'which prevents sudden shocks that are likely to damage machinery, and the blocks 'can be inserted by simply slipping 'chemin place when the ring A is taken apart.

The third part relates to providing the forks or heads D with recesses or chambers, so as to receive the ends of the tumbling-rod. The pin in the end of the' tumbling-rod passes through the slots shown, pass behind the holders ofthe chamber, and prevent it from uncoupling. The object is the convenience of coupling and nnconpling, as hereafter described.

lDescription of the Drawing.

Figure 1 represents a side view of my invention.

Figure 2, an end view of one of the heads or forks.

Figure 3, a section of one of the forks or heads taken at the line x x.

Figure Liis a sectional view across the ring with the forks or heads'removed.

Figure 5 is aplan view of one of the ring-pieces, showing how the forks or heads are arranged there on. y

Figure 6 is a section, taken at the line y y in iig. 1, showing one fork or head with the tumbling-shaft provided with a pin, and the other one with the shaft removed to show the circular extension of tbeslats in the chamber.

General Description.

A are the coupling-rings, and

C, bolts holding them firmly together.

S are grooves or recesses in the rings-A;

B are movable blocks placed in the grooves S;

D are the forks or coupling-heads; and

T, lugs or trunnions thereon.

a are the chambers in the coupling-heads D, and

b, slots for the pin in the shaft to pass into thc chamber. y

E are the shafts, provided with a pin, f. 1

The coupling-ring A is castrin. two parts, which,

when put together, as indicated in the drawing, have two grooves or recesses S.

The movable blocks B are placed in thev grooves or recesses S, andare held therein by the projecting edges. I

The lugs or trnnnions of the coupling-heads D also extend into the recesses S, one of thenm being at each end of the movable block B, and, when these parts are put together, careshould be taken fto so arrange them that, when the power is applied to. the machine, the tru'nnions will press against the movable pieces B. v

These pieces are made of elastic vor soft metal, that will not wear the trnnnions of the coupling-heads, but, at the same time, will. be durable, and they can be readily replaced if they do become worn." l

The bolts C pass through the solid portions of the rings A, and hold them iirmly together, thus securing the pieces B and the coupling-heads in place.

`The shaft E passes loosely within the chamber a in the coupling-head D, the pin j' passing through the .slots b into'the chamber a.

I The slots b are arranged in the center of the chamber, so that as the shaft turns, the pin strikes the shoulders, and is held within the chamber; but when it ispdesired to uncouple the, tumbling-shaft, the shaft E is so tn rned within the head D- as to bring the pin f directly opposite to the slots b, whence it-can be readily removed. j

-By so coupling I am enabled, not only to translate power from directions under certain angles to the tumbling-shaft, but, at the same time,y there will be the advantage of avoiding a pressure or any strain on -the gearing by making ythe chamber a. long enough, as

to givespace, in which the pin f may play,if there should be any changein the position of the power applied.

Claims.

Having described nfy invention,

1. The ring A, made with chambers or grooves S, for receiving the lugs or trnnnions of the couplingheads D and the movable blocks B, when constructed and operated substantially as and for the purposes specified.

2. The movable blocks B sliding in the grooves or chambers S, when arranged and operating substantially as and for the purposes specified.

A3. lhe couplinghead D, when provided with the chamber a and slots b, substantially as and for the purposes specified and shown.

SILAS C. SCHOFIELD. Witnesses:

L. L. COBURN, HEINRICH F. BRUNs. 

